Truck construction for dynamo suspension.



P. KENNEDY. TRUCK CONSTRUCTION FOR DYNAMO SUSPENSION.

APPLICATION FILED MAY 17, 1911. 1,049,104, Patented Dec. 31, 1912.

2 SHEETSSEEET 1.

INVENTOR ATTORNEYS P. KENNEDY.

TRUCK OONSTRUGTION FOR DYNAMO SUSPENSION.

APPLICATION FILED MAY 17, 1911.

1 ,049, 104. Patented Dec. 31, 1912.

2 SHEETS-SHEET 2.

lllllllllllllii -29 ATTORNEYS ur es.

PATRICK KENNEDY, or NEW YORK, N. $2., 'ASSIGNORTO CONSOLIDATED RAILWAYELECTRIC LIGHTING AND EeUIrMENr COMPANY, OF NEW YORK, 1N...Y., A CORPO-aliTIoN or MAINE.

TRUCK CONSTRUCTION FOR DYNAMO SUSPENSION.

citizen of the United States, residing at No.

177 Putnam avenue, borough of Brooklyn,

'county of Kings, city and State of New York, have invented certain newand useful Improvements in Truck Construction for Dynamo Suspension; andI do hereby declare the following to be a full, clear, and exactdescription of the invention, such as Will enable others skilled in theart to which is appertains to make and use the same. This inventionrelates .to truck constructions for dynamo suspensions and particularlyto a form adapted to suspend within the truck frame an axle driven carlighting generator or an electric mot-or adapted to drive the axle.

In my co-pending application, Serial No. 627,772, filed of even dateherewith, I have broadly disclosed a truck having a divided end-silltogether with a form of suspension supported from the side membersthereof.

The object of this invention is to provide means for supporting a dynamofrom the end members of the divided end-sill in such a way that the axisof the suspension is substantially parallel to the axle of the truck,and the dynamo is suspended well above the track rails.

Another object is to provide, in combination with such a form of truckand suspension, means for adjusting at will either or both of the pointsof support to adjust the degree of parallelism between the dynamo shaftand the axle, and also to adjust the interaxial distance between them.

Another object is to provide means for automatically regulating the belttension by turning the dynamo about the pivot points of support in suchmanner as to elfect the distance between, the driving and drivenmembers.

'In the accompanying drawings-showing the preferred. embodiment of thisinvention,

Figure 1 is a plan view, partly broken away,

section line H of Fig. 3; Fig. 5 is a detail View of the suspensionbearing in the endsill.

Specification of Letters Patent. Patented Deg 31, 1912 Application filedma 17, 1911. Serial No. 627,773.

by, a dynamo 5, depending upon whether a car lighting generator isdriven from the axle 'to supply electriccurrent, or whether an electricmotor is supplied with current to drive the car.

Excepting the end-sills, the truck may be of any ordinary construction,having the side-sills 6. The end-sill comprises the two connectingmembers 7 projecting from the side frames, and an intermediate partdivi'ded horizontally into two transverse side members 8, therebyforming a space between the side members adapted to embrace the dynamo.In this way'the dynamo may be supported so that its center line liessubstantially in line with the members 7, which is the position occupiedby the end-sill of types of construction heretofore customary.Furthermore, if desired, the center" line of the dynamo may be locatedsubstantially in the same horizontal plane as the center line of theaxle, so as to secure ample clearance between the bottom of theequipment and the top of the track rails.

In the drawings I show an end-sill integral with the side frames, andwith the ends merging thereinto in a curved outline, in order to obtainstrength with an economical use of material. The truck members and theend-sill may be constructed of any suitable material and with anysuitable section, although it is preferable to use cast or pressed steelhaving a channel or angle shape. Although it is not essential, thetrucks shown are provided with longitudinal safety-bars 9, between thewheels 10, the extension of these members forming the end members 11, ofthe end-sills.

The side members 8 of theend-sill may be bolted or otherwise fastened tothe end mem here 11, or may be made integral therewith as shown in thedrawings. Also the side members may be formed square with the endmembers or they may merge thereinto to as toembrace a dynamo between themembers thereof.

The suspension for the dynamo may have various forms, but, in this case,I prefer to provide a suspension which comprises a frame such as 12pivotally supported in the end members 11 by the trunnions 13. In

Fig. 1 the trunnions are jour'naled in bearings 14:, carried bypedestals 15 supported by the bent straps 16 which are fastened to thebottom of the end members of the end-sill by any suitable means suchasbolts 47. The pedestals are adjustably fastened to the straps 16 bythe bolts'17 threaded intothe straps and passing through the elongatedholes in the bed plate. In Fig. 3 the trunnion bearings 14 are supportedon the top of the end-members 11 by the pedestals 18 which are fastenedby bolts 19 threaded 20 into the end-sill and passing through theelongated holes 20 in the pedestals, as is best shown in Fig. 5. Withthese forms of construction, the degree of. parallelism between thecenterline of the dynamo and the axle 1, zs'and the interaxial distancebetween them,

may be adjusted at will by means of .the adjusting bolts 21, which arethreaded through the bent straps 16 in Fig. 1 and through the lugs 23carried by the end-sill in Fig. 3, to. co-act with the bosses 22 havingelongated holes 20. V

In Fig. 1, the dynamo rests directly in the frame or cradle 12, whilein'Fig. 3 the dynamo is supported from the frame or cradle 12 by meansof the bolts 2 1 and further supported by means of the safety straps 25which are fastened to the side members 8 of the end-sill by bolts or inother suitable manner. The belt tension may be automatically regulatedby a spring between the truck and any part arranged to swing about thetrunnions. For this purpose I show the spring 26 pressing against themember 27 fixed to the truck and against the nut 28 which is threaded ona rod 29 connected to the dynamo at 30. The compressive stress of thespring may be adjusted by means of the nut 29 to suit the particularconditions of operation.

It is apparent that the construction herein disclosed may be modified inmany particulars without departing from the spirit of the invention and,therefore, I do not in any way limit myself to the specific form shown.The essential features of the invention are a divided end-sill integralwith the side-sills and a suspension supported from the end members 11of the end-sill.

In this application the claims for the truck are limited to a structurein which the end-sill is integral with the side-sills, while the claimsfor the dynamo suspension are limited to trunnion bearings therefor, ora suspension supported from the end members of the truck. The companionapplication roaaioe 627 ,772,,filed May 17,1911, broadly covers a truckhaving a divided part adapted to embrace a dynamo, and specifically astructure in which the end-sill isfastened'to the sidesills, while theclaims for the dynamo susbetween the members of the end-sill, and

specifically a cradle hung between the sides of the end-sill.

Having thus described my inventlon what I claim is:'-

1. A car truck having s ide-sills .and an 'pension broadly cover adynamo mounted end-sill integral with said side-sills and hav- 1 ing anintermediate divided part adapted to embrace a dynamo between themembers thereof.

2. A car truck having side-sills and an. end-sill integral with saidside-sills and merged thereinto in. a curved outline, said end-sillhaving an intermediate divided part adapted to embrace a dynamo betweenthe members thereof.

8. The combination with a truck having a divided end-sill, of adynamosuspension a belt, and means for varying the distance between the dynamoand axle, whereby the tension of the belt is adjusted.

6. The combination with an axle, and a truck having a divided end-sill,of a dynamo suspended from the end members thereof and operativelyconnected with the axle by a belt and means for adjusting at will thepoints of suspension tovary the distance between the dynamo and theaxle, whereby the belt is tightened orloosened at will.

'7. The combination with an axle, and a truck having a divided end-sill,of a dynamo pivotally suspended from the end-members andbetween the sidemembers thereof and operatively connected with the axle by a belt, andautomatic means adapted to swing the dynamo about the pivots whereby thetension of the belt is automatically regulated.

8. The combination with an axle, and a truck having a divided end-sill,of a dynamo pivot-ally suspended from the end members and between theside members thereof and operatively connected with the axleby a belt,means for adjusting 'at will the distance between the dynamo and axlewhereby the belt is loosened or tightened, and means for automaticallyswinging the dynamo about its pivots whereby the belttensionjisregulated.

The combination with an axle, and a truck having a divided end-sill, ofa frame supported in slidable bearings from the end members thereof, adynamo supported by said frame and operatively connected with the axleby a belt, and means adapted to move said bearings toward or away fromthe axlei, whereby the belt is loosened or tightene 10. The combinationwith an axle and a truck having a divided ends-sill, of a frameplvotally supported in slidable bearings in the end members thereof,adynamo supported from said frame and operatively connected with theaxle by a belt, means for moving said bearings toward or away from 15the axle whereby the belt may be loosened or tightened at will, and aspring acting against the dynamo or frame and a fixed part of the truckto swing the frame in its bearings whereby the belt tension is auto-' 20matically regulated. I y In testimony whereof I afiix my signature,

in presence of two witnesses.

PATRICK KENNEDY.

Witnesses I AUG. TREADWEIL, Jr., Mrs. EDWIN FRENCH.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

